[gtk] textlayout: Use gtk_snapshot_{push,pop}_collect()

[Matthias Clasen <matthiasc src gnome org>]

commit 17ddae5bf90144dd3cd6db6b3410fae6d39c2069
Author: Timm Bäder <mail baedert org>
Date:   Fri Jan 31 17:43:31 2020 +0100

    textlayout: Use gtk_snapshot_{push,pop}_collect()

 gtk/gtktextlayout.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)
---
diff --git a/gtk/gtktextlayout.c b/gtk/gtktextlayout.c
index 5a2b419730..a5b2d8fe08 100644
--- a/gtk/gtktextlayout.c
+++ b/gtk/gtktextlayout.c
@@ -4160,15 +4160,13 @@ gtk_text_layout_snapshot (GtkTextLayout      *layout,
 
           if (line_display->node == NULL)
             {
-              GtkSnapshot *sub = gtk_snapshot_new_with_parent (snapshot);
+              gtk_snapshot_push_collect (snapshot);
 
-              crenderer->snapshot = sub;
               render_para (crenderer, 0, line_display,
                            selection_start_index, selection_end_index,
                            cursor_alpha);
-              crenderer->snapshot = snapshot;
 
-              line_display->node = gtk_snapshot_free_to_node (sub);
+              line_display->node = gtk_snapshot_pop_collect (snapshot);
             }
 
           if (line_display->node != NULL)